4 cups masa harina
2 teaspoons salt
3 cups cold water
1 cup grated mozzarella cheese
1 cup refried bean, cooked
1/2 cup frozen spinach, thawed and drained
1 tablespoon vegetable oil, for frying
1 - Make the pupusa dough: In a large bowl, whisk together the masa harina and salt, then add the water. Use your hands to mix until the dough comes together with a clay-like texture.
2 - Fill a small bowl with water and a bit of oil and set near your work station. You’ll wet your fingers with the mixture as you work to keep the dough from sticking to your hands.
3 - Take a golf ball-sized portion of dough and roll into a ball, then flatten into an even round.
Fill the dough round with 1 teaspoon refried beans and 1 teaspoon mozzarella cheese (or just cheese, or spinach and cheese). Fold the dough over the filling until it’s completely sealed. Then, pat out the ball between your hands until flat. If the pupusa cracks, patch it with a bit of dough and a little oil. Repeat with the remaining ingredients.
4 - Heat a large pan or griddle over medium heat. Brush with vegetable oil, then place 2-3 pupusas on the pan and cook for 2-4 minutes, or until the bottoms are golden brown. Flip and cook on the other side for 2-4 minutes more, until golden brown and warmed through. Repeat with the remaining pupusas.
Recipe from Tasty